[PATCH 2/9] nvmet: set the LBCC bit for commands that modify data

Christoph Hellwig hch at lst.de
Wed Dec 14 08:13:40 PST 2022


Write, Write Zeroes, Zone append and a Zone Reset through
Zone Management Send modify the logical block content of a namespace,
so make sure the LBCC bit is reported for them.

Fіxes: b5d0b38c0475 ("nvmet: add Command Set Identifier support")
Signed-off-by: Christoph Hellwig <hch at lst.de>
Reviewed-by: Chaitanya Kulkarni <kch at nvidia.com>
---
 drivers/nvme/target/admin-cmd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index 111a5cb6403fb0..6a54ed6fb12144 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -174,17 +174,19 @@ static void nvmet_get_cmd_effects_nvm(struct nvme_effects_log *log)
 		cpu_to_le32(NVME_CMD_EFFECTS_CSUPP);
 
 	log->iocs[nvme_cmd_read] =
-	log->iocs[nvme_cmd_write] =
 	log->iocs[nvme_cmd_flush] =
 	log->iocs[nvme_cmd_dsm]	=
-	log->iocs[nvme_cmd_write_zeroes] =
 		cpu_to_le32(NVME_CMD_EFFECTS_CSUPP);
+	log->iocs[nvme_cmd_write] =
+	log->iocs[nvme_cmd_write_zeroes] =
+		cpu_to_le32(NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC);
 }
 
 static void nvmet_get_cmd_effects_zns(struct nvme_effects_log *log)
 {
 	log->iocs[nvme_cmd_zone_append] =
 	log->iocs[nvme_cmd_zone_mgmt_send] =
+		cpu_to_le32(NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC);
 	log->iocs[nvme_cmd_zone_mgmt_recv] =
 		cpu_to_le32(NVME_CMD_EFFECTS_CSUPP);
 }
-- 
2.35.1




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